Yarn winding device for spinning machines



March`3, 1964 J. J. Kl-:Ysx-:R

YARN WINDING DEVICE FOR SPINNING MACHINES 4 Sheets-Shea?l l Filed Oct. 9, 1961 F lG. 3b FIG. 3a

FIG. la

FIG. 4b FIG. 4a

d 2 F. F

INVENTOR JOHANN` JACOB KEYSER FIG.; 2e

March 3, 1964 J. J. KEYSER YARN wINDING DEVICE FOR SPINNING MACHINES 4 Sheets-Sheet 2 Filed 001. 9. 1961 5 INVENTOR JoHANN JAco msm March 3, 1964 J. J. KEYSER 3,122,877

YARN WINDING DEVICE EOE SPINNING MACHINES Filed oct. 9, 1961 4 sheets-sheet s FIG. 6c

INVENTOR JOHANN JALOB KEYSER n BY FIG. 6a

4 Sheets-Sheet 4 March 3, 1964 J. J. KEYsER YARN WINDING DEVICE FOR SPINNING MACHINES Filed oct. 9, 1961 United States Patent O 3,122,877 YARN WINES-ING EVHZE FR SPTNNENG MACHINES ohann .lacob Keyser, Grabenaiiee i6, Aarau, Switzerlmd Filed Oct. 9, 196i, Ser. No. 343,739 Claims priority, application Germany pt. 12, 1960 2li Claims. (Cl. 57-i29) The present invention relates to a yarn winding device especially for spinning machines or twisting machines, the term yarn winding device comprising those parts of a spinning machine which cooperate for winding the yarn into a cop. With spinning machines of customary structure, the yarn winding device comprises a driven spindle which is journalled in the spindle rail and is adapted to receive a yarn sleeve upon which the yarn is directly wound and together with the latter, following the winding up operation, forms the finished cop.

The heretofore known yarn winding devices of this type are rather expensive because each yarn winding device comprises a spindle the upper portion of which must have a length and thickness corresponding to the sleeve to be placed thereon. This means that on the respective spindles, only such cops can be produced the dimensions of which are adapted to the respective available spindle upper portions. Any material changes in the size of the cop require an exchange of the spindle upper portion, if not even of the entire spindle. inasmuch as with these known spindles, the yarn sleeves are placed upon the spindles from the top, and the finished cops have to be withdrawn over the top of the spindles, considerable manual labor is required which, in addition thereto also requires a considerable total period of stoppage of the machine, i.e., a considerable loss in production.

Therefore, numerous attempts have been made in an effort to permit the withdrawal of the full cops and placement of the empty yarn sleeves on the spindle by mechanical means. These known attempts have, however, not resulted in a practical solution because the construction of such devices is far too expensive and in addition thereto, impedes the servicing of the machine.

t is, therefore, an object of the present invention to provide a yarn winding device which will overcome the above-rnentioned drawbacks.

It is another object of this invention to provide a yarn winding device which will greatly facilitate the placing of the yarn sleeve and the withdrawal of the full cop.

It is also an object of the present invention to provide a yarn winding device as set forth in the preceding paragraphs, which will also bring about considerable advantages in the journalling of the sleeve receiving member.

These and other objects and advantages of the invention will appear more clearly from the following specification in connection with the accompanying drawings, in which:

FIGURE la is a longitudinal section through a first embodiment of a yarn winding device according to the invention.

FIGURE lb represents a longitudinal section through a further embodiment of a yarn winding device according to the invention.

FGURES 2a, 2b, 2c, 2d and 2e respectively illustrate different embodiments of annular holding means for use in connection with a yarn winding device according to the present invention.

FIGURES 3a and 3b respectively illustrate two embodiments of holding means for the lower end of a sleeve in a tubular member employed in connection with the yarn winding device of FIGS. la and 1b.

FIGURES 4a and 4b respectively illustrate further holding means for the lower end of a sleeve in a tubular member employed in connection with the yarn Winding device of FIGURES la and lb, respectively.

FIGURE 5 illustrates a further embodiment of a yar winding device according to the invention.

FIGURE 5a is a cross section through a detail of FlGURE 5.

FIGURES 6a, 6b and 6c respectively illustrate, partially in section, further embodiments of yarn winding devices with a tubular body according to FIGURE l,

FIGURES 7a, 7b and 7c respectively illustrate, in section, further yarn winding devices according to the invention with a tubular body employed in the arrangement of FIGURE 1b.

General Arrangement The yarn winding device according to the present invention, which is radically different from heretofore known devices of the type involved, is characterized primarily by a rotatably and drivingly arranged tubular body and by at least one yarn sleeve placed in the interior of said tubular body, said yarn sleeve being held at the upper end of the tubular body as a shankless yarn carrier.

Thus, in conformity with the present invention, no yarn sleeve is any longer placed or slipped over the upper portion of a spindle but is held from the outside by a tubular body whereby a spindle-less yarn carrier is formed. This arrangement greatly facilitates the insertion of the yarn sleeve and the withdrawal of the full cop. This easier handling is due to the fact that the heretofore known slipping-over of the yarn sleeves on a spindle upper portion as well as the withdrawal of the full cop from said spindle upper portion at a relatively long servicing stroke, has been eliminated.

Furthermore, also with regard to journalling and driving of the tubular body, considerable advantages are obtained over the heretofore known spindles.

For holding the yarn sleeve in the tubular body, the yarn sleeve placed into the interior of the tubular body may be axially displaceable along the inner wall of said tubular body While being held in its respective position by friction. To this end, at least two holding means may be provided which engage the wall of the yarn sleeve. One of these holding means may be arranged at that end of the tubular body which faces the sleeve, ywhereas the other holding means may be engaged by the inner wall of the tubular body. The yarn sleeve is thus embraced at two portions and is secured against an inclination or tilting movement. Due to this way of locating and securing the yarn sleeve on the tubular body, the unity of the yarn winding device is established so that rotation of the tubular body will result in the same rotation of the yarn sleeve.

In order to obtain an insertion of the yarn sleeve into the tubular body and the holding thereof by friction or clamping action, the holding means may, in conformity with the present invention, be radially yieldable. In view of the shape of the holding means which are formed in conformity with the respective circumstances, it is possible to adapt the arrangement to various types of yarn sleeves. Also, the properties as to material of the holding means will permit great adaptability to the required friction and any desired damping of oscillations.

More specically, the holding means may be formed by yieldable rings which, when widening the yarn sleeve and inserting the same, widen, and while developing a clamping tension, hold the yarn sleeve fast. According to a further development of the invention, the holding means may be formed by hollow elastic rings the inner pressure of which is variable, thereby creating the possibility of adapting the clamping tension to the weight areas?? justable from the outside toward the wall of the yarn sleeve in the radial direction until frictional engagement is obtained. Such an arrangement may be realized according to the present'invention by'placing the upper holding means on the upper end face or" the tubular body and holding said upper holding means in axially and radially clamped position by an annular liange of a bushing surrounding the free end of the tubular body.

According to a further development of the invention, the bushing may, by a spring or the like, -by means or" its annular flange, be axially clamped against the end face or the tubular body and may, in its turn, axially and radially brace or clamp the elastically yieldable ring forming the holding means. The clamping force thus is dependent not only from the elastic ring but also from the spring `force acting thereupon, so that the clamping force may/be varied in a manner known in connection with an elastic ring subjected to inner pressure.

There also exists the possibility of clamping the bushing by spring force or the like, by means of a conically downwardly Widening annular liange, axially against the end face of the tubular body. Such a plier-like embracement of the yarn sleeve by a clamping or holding means yields the same advantages as a disengageable clutch.

To adapt the holding means `to various lengths of yarn sleeves, the location of at least the lower holding means in the tubular body may 4be variable over the length of said tubular body.

As to a corresponding design of the tubular body, various possibilities exist. According to one possibility, latch means or the like distributed on the inner wall of the tubular body over the length thereof, may be provided for holding the holding means -in the tubular body. It is particularly advantageous to design the tubular body as a corrugated tube while axially arresting the holding means onvthe inwardly directed valleys of the corrugated tube.V The corrugation makes it possible, without additional costs, to arrest the holding means on the interior of the hollow body in numerous ways while the valleys on the outside of the tubular body may be taken advantage of for very simply journallin'g or driving said tubular body.

.In order further to adapt the yarn winding device to variously designed yarn sleeves and `t-o secure the posi- Ytion of said yarn sleeves, it is possible, in conformity with the present invention, to design the holding means engaging the lower end of the yarn sleeves as a permanent magnet which is located and held on the inner wall of ythe tubular -body Vby means of radially yieldable holding means. In this Way, the yarn winding device will, without diculty, also permit the winding of yarn upon yarn sleeves which consist completely of metal or have at least their lower end armed by iron or another metal adapted to be magnetized.

ln order to assure the location of the lower yarn sleeve end in .the radial as well as in the axial direction in a different way, it is also possible, with a corresponding design, to form the holding means engaging the lower end of the yarn sleeve as a supporting sleeve held on the inner wall of the tubular body while said supporting sleeve supports the yarn sleeve from below. The above-mentioned embodiments are preferably designed or the insertion of the yarn sleeve into the tubut-lar body from the top thereof. The holding means arranged on the inner wall of said hollow body will take care of assuring the location of the yarn sleeve. The withdrawal of the full cop is effected by pulling the same outV of its mounting. The insertion of the next empty yarn l sleeve nay be effected only after the full cop has been withdrawn. The most favorable solution of the problem underlying the present invention consists in making the tubular body open at both ends so that at least one yarn sleeve may be pushed through lfrom below. Such an arrangement furnishes the possibility that when tilting the yarn sleeve carrying a iinisned cop, simultaneously a new sleeve be brought into its position, said sleeve being moved by the tubular body from below into its spinning position.

The new type of arrangement according to the present Y invention also yields various possibilities of designing the details of the arrangement according to the present invention. Thus, according to one embodiment, a holding means provided at the lower end of the tubular body is formed by a spring body which will be expanded when pushing through a yarn sleeve from below. The said spring body is provided with an inwardly directed extension or the like by means of which, following the pushing-through of the sleeve, said spring body catches below said sleeve and supports the same in the axial direction. ln this way, the location as to height of the yarn sleeve is secured in a proper manner.,

In addition thereto, a magazination of yarn sleeves within the tubular 'body will be possible. According toV a corresponding feature of the invention, a yarn sleeve insertable from below into the tubular body, is adapted to be moved out of the tubular body by means of a successive sleeve partially insertable from below in said iirst mentioned yarn sleeve. The said first mentioned yarn sleeve is movable out of the hollow body by said successive sleeve to such an extent that it will have only its lower end in the tubular body. In this way, continuously from below, new yarn sleeves may be inserted into the tubular body while the sleeves insertable from below will only partially protrude from the tubular body and at the same time will form the holding means of the partially moved out yarn sleeve, which latter has only its lower end still in the tubular body and is available for the winding operation with the customary length. When the cop has been formed, the upper yarn sleeve with the cop may be lifted oit, and the successive sleeve having its major portion still in the tubular body will then be able, by means of further successive sleeves, to be moved into spinning position. This arrangement yields additional safety with lregard to the vertical locationing of the yarn t sleeves in spinning positionand may be used for furtherV damping oscillations.

More specitically, the portion of the successive sleeve inserted into the preceding yarn sleeve may be reduced in diameter by the wall thickness of the first-mentioned sleeve so that the successive sleeve will, from the inside, support the lower end of the working sleeve.

lf desired, the yarn sleeve may, in a manner known per se, be designed conically while the cone is so selected that a similarly designed successive sleeve will be adapted over a portion of its length to be inserted into the first sleeve from below.

The insertability of the yarn sleeves into the tubular body from below makes it possible to employ a special type of sleeves which have expandable sleeve portions. Therefore, the present invention is also characterized by the employment of a plurality of yarn sleeves adapted telescopically to be inserted into each other, which sleeves with their respective lower ends are adapted to be located in their respective position by holding means. Consequently, by means'or" the tubular body, itis possible to hold not merely two partially interengaging yarn sleeves but also a plurality of yarn sleeves or a yarn sleeve of a plurality of telescopically interengaging parts. The respective inner sleeve or sleeve portion forms, so-to-speak, the shank for the next sleeve or sleeve portion thereabove. As will be evident from above, the yarn sleeves form a spindleless yarn carrier.

rag'

Referring now to the drawings in detail, the arrangement shown in FIGS. la and lb illustrates a yarn winding device according to the present invention with a tubular body '1 and lill, respectively, which is rotatably and drivingly journalled in the spindle rail. The spindle rail may either be U-shaped or may be designed in the form of a. housing box, but may, of course, also be of other suitable shape. ln the particular embodiment shown in the drawing, the lower housing wall 2' and the upper hous- -ing Wall 2 of the spindle rail are shown. In the lower housing wall 2 there is arranged the anti-friction bearing 3, whereas the upper housing wall 2" supports the antifriction bearing 4.

According to the embodiment of FG. la, the tubular body 1 consists of an outer smooth tube section so that the anti-friction bearings 3 and d can be mounted thereon without difficulty.

According to the embodiment of FIG. lb, the tubular body T191 is designed as `a corrugated tube so that it is possible to allow the anti-friction body of the bearings 3 and d to move in a Valley of said tubular body lill without the necessity of providing an inner race ring for the respective bearing. In the upper housing wall Z" above the anti-friction bearing 4 in a bore 5a there is mounted a sleeve 5 vwhich serves yas protective means against the entry f lint or the like. T he tubular body l, itil respectively extends through sleeve 5 and freely protrudes beyond the upper housing wall 2 of the spindle rail. r1he free end of the tubular body l, ll respectively is provided with an outwardly directed llange 6 against which rests one end of a spring 7. Spring 7 has its lower end resting against a spring ring which, in its turn, is held in bushing 9. The upper end of bushing 9 extends inwardly above flange 6 of the tubular body 1, 191 respectively and, together with the ilange 5 clamps therebetween an elastic annuler body 1t?. According to FlG. la, the elastic annular body lil is shown in a condition in which spring 7 has not yet exerted any deforming effect on said annular body 1t?.

FIG. lb shows that the clamping force exerted by spring 7 upon the elastic annular body l@ presses in the arial direction so that it fully rests against the portion surrounding said annular body ltr and deforms the latter radially inwardly so that the yarn sleeve 1l inserted in the tubular body l, lill is rrnly held in its respective position by friction. The annular body vlll alone establishes a connection between the tubular body 1, lill re spectively on one hand, and the inner sleeve 11 on the other hand which vwill convey a rotative movement imparted upon tubular body l, lill upon the yarn sleeve il. Since, however, the yarn sleeve 1l has to be held properly along the longitudinal axis of the tubular body l, lill respectively, at least two holding means are required which engage the wall of the yarn sleeve 11. To this end, according to the embodiment of FIG. la, the inner wall of the tubular body l is at uniform distances provided with a greater number of groove-shaped recesses l2 which are distributed over the entire length of the tubular body l and are adapted to receive mnular holding means.

According to the embodiment of FiG. lb, the valleys on the inside of the corrugated tubular Ibody lill receive such annular holding means. According to FIGS. la and lb, near the upperend of the tubular body l, 191 respectively there is provided a lfurther holding means in the form of an elastic ring 13 engaging a recess `12 of the tubular body 1 or a valley of the tubular body lill, so that the inner circumference of the elastic ring i3 engages the outer wall of the yarn sleeve 1l under friction. Arranged in one of the recesses l2 located therebelow and pertaining to the tubular body 1 or in a corresponding valley of tde tubular body lill, is a further elastic supporting ring ld supporting the lower end of the yarn sleeve 1l in the axial direction. The seat of the yarn sleeve l1 inserted in the tubular body l, lill respectively is in this way properly secured by the elastic annular body 10, the elastic ring 13 and the elastic supporting ring 14 inasmuch as at least the annular body l@ and ring 13 will frietionally engage the yarn sleeve ll. Due to the present greater number of free recesses 12. on the tubular body l and the valleys on the corrugated tubular body 101, there exists the possibility to provide further elastic rings i3 and to cause the same to engage the wall of the yarn sleeve 1l. Similarly, it is possible to arrange the elastic supporting in conformity with the length of the yarn sleeve lil to -be supported in any one of the recesses 12. ln this way, a great adaptability to the various dimensions of yarn sleeves prevails.

FlGS. la and lb also show possibilities for driving the tubular body l, lll-l. For instance, the tubular body i muy be driven by means of a band l5 which either directly engages the outer surface or" the tubular body `l or engages a whorl sleeve 16 mounted on the tubular body and consisting of a frictional material. The drive of the tubular body lill ma for instance, be effected by means of a cord 1.7 which engages a valley section on the outside of the tubular body lill. `If a single cord 17 should not suillce, a second cord or additional cords may engage corresponding further valley sections of the tubular body 101 as driving means.

FIGS. 2a to 2e respectively illustrate various annular holding means which may be arranged at those portions where the elastic annular body lil, the elastic ring 13, or the elastic supporting ring le, may be provided. According to FiG. 2a, ring l has a round cross-section and is also circular when seen from the top, as shown in FIG. 2b in the form of a ring i9 having a somewhat larger diameter and cross-section. 'Ring 2li, according to FlG. 2c, is of hexagonal shape when seen from the top. A further embodiment of an annular holding means is shown in FlG. 2d according to which the holding means is designed as a wire spiral 2l which makes it possible, in view of an inclined position of the individual windings, to obtain a widenin g of the holding means in conformity with the requirements. FIG. 2e shows a hollow elastic ring ZZ forming a holding moans the inner pressure of which is variable, for instance, by increasing or decreasing the air pressure through the intervention of valve 23. With such bollo-w ring 22, the adaptability to various diameters of yarn sleeves is increased without requiring an exchange of the holding means. By varying the air pressure, also the force for pressing the ring against the yarn sleeve or the oscillation damping characteristic thereof, may be varied. The same object may be obtained with rings according to FIGS. 2o' to 2d by adapting the dimensions or the elastic properties of the rings to the respective requirements.

There exist further possibilities for the design of the holding means arranged at the lower sleeve end. Instead of the supporting ring le?, according to FlGS. 3a and 3b, a holding means may be provided in the form of a permanent magnet which supports a yarn sleeve il from below. The permanent magnet 25 is by means of rings 113, 14 held fast in the tubular body l, respectively. Rings 13 may, for instance, be designed similar to the rings 1S, 19 or Ztl or according to FlGS. 2a to 2c. The rings 13, 191 either directly engage depressions 12 in the tubular body 1i. or valley sections of the tubular body lill. The lower end of the yarn sleeve l1 is provided with the annular body 24 which consists of yarn or a magnetizable metal and which is pulled downwardly by the permanent magnet 25 having a definite location in axial direction so that the location of the yarn sleeve 11 will likewise have a definite location in the axial direction. The lower end of yarn sleeve ll is laterally held by the holding ring l13 in the radial direction, which ring also serves for holding the permanent magnet Z5. With a corresponding elasticity of the holding ring 13, the yarn sleeve 1l retains from the cross-section of FlG.V ft.

laterally a certain play so that the yarn sleeve will be able, during rotation, to adjust itself to the line of gravity.

FGS 4a and 4b show the design and arrangement oi a sleeve-like holding means which supports the lower end of the yarn sleeve ll. The bead 27 at the upper end of the holding means 26 directly engages a depression l2 ofthe annular body l, as sh wn in FlG. 4a, or engages a valley section of the annular body Lidl, as shown in FIG.

4b. The lower end of the sleeve-like holding means 2o has an inwardly protruding section 23 supporting the lower end of yarn sleeve 1l, the outer wall of which additionally engages the inner circumference of bead Z7.

Due to the elastic design of the sleeve-like holding means Y 26, also in this instance there exists the possibility that the yarn sleeve 1l will be able, during its movement, to follow the oscillations which may occur.

FlGQS illustrates a further embodiment or" a tubular body according to the invention. The two tubular bodies 1 are, by means or" the anti-friction bearings 3 and fl, rotatably journalled in a common spindle-box 2, as it may be employed, for instance, in connection Vwith two-sided machines. From FIG. 5 it will be evident how, for instance, the drive of the tubular body l may be elected by means of a belt. in the longitudinal direction of the spindle-box 2 extends a driving shaft 3l having connected thereto belt driving pulleys 32. rhe driving belts 33 are so -arranged that they directly embrace the tubular body l. The yarn winding device illustrated in FIG. 5 is somewhat differently designed with regard to the embodiment of FIG. la. In addition to the journalling of the tubular body l which `journalling corresponds to that of the embodiment of FIG. la, similarly, depressions l2 are provided on the inner 'wall ofthe tubular body l, said depressions l2 being provided in any desired number. At the lower end of the tubular body l there is provided a sleeve-like holding means 26, as has been described in detail in connection with FIG. 4a. The lower end of the sleeve-like holding means 26 is open similar to the tubular body l. yinasmuch as the holding means 26 is elastic, it may be widened so that a conical yarn sleeve 3d can be introduced from below. Such yarn sleeve may be passed through the sleeve-like holding means 25 and the hollow body 1 to such an extent that it will occupy the position illustrated on the left hand side of FlG. 5 in which sleeve 3S has its lower end resting upon the upper end of yarn sleeve y34- and, together with the latter is radially clamped by means of Vthe holding means arranged at the upper end of the tubular body l. At the upper portion ot the tubular body 1, the connection between the tubular body l and yarn sleeve has been established in a manner ditierent from that shown in FiG. la. Similar to the latter, above the anti-friction bearing l there is provided the sleeve V5. Also flange d, spring '7, spring ring 8, and bushing 9 are provided. However, the inwardly protruding portion of bushing 9 which extends over ange 6 has a special design. According to the embodiment of FlG. 5, the inner circumferential portion 3d or the annular iiange of bushing 9 is conical and llares downwardly. Within the annular .llange there are provided correspondingly conical segments or ring sectors 37 in spaced Varrangement with regard to each other, as is clearly evident When the bushing 9 moves in the axial direction under the influence of spring 7, ring sectors 37 are clamped against the outer wall of yarn sleeve 35 in radial direction, so that a plier-like hold ing of the yarn sleeve 35 will be assured.

With the embodiment according to FIG. 5, the yarn sleeve 34 represents a successive sleeve which supports the lower end of the yarn sleeve 35 in winding position. Cop 3S is to be wound upon yarn sleeve 35. When cop 33 has been completed, yarn sleeve 35 with cop 3S thereon is, following a slight lifting of bushing 9 and the loosening of the ring sectors 37 inherent thereto, withdrawn in upward direction ont of the tubular body l from the yarn sleeves 4for woot bobbin change automats.

sleeve 34, as has been shown on the right-hand side of FlG. 5. rlhereupon, yarn sleeve 'Ela may be brought into the position which previously was occupied by yarn sleeve is eiiec ed by pushing a further yarn sleeve 39 from below upwardly, which will now move into the position of yarn sleeve 3d. Thus, from withdrawal to withdrawal, ffull cop may be replaced by sleeve after sleeveV from below. For purposes of removing a completed cop, a slight lifting od of 'ne latter is required in order to strip the same over the upper end of that yarn sleeve which at the respective time is in the interior of the tubular body El.

This lifting ot of the cops requires that at least the clamping force of the holding means 37 at the upper end of the tubular body l will be overcome. vFor purposes of relieving the clamping tension of this holding means, it

is sucient to displace bushing 9 upwardly against the Y FIGS. 6a and 6b illustrate further embodiments of aV yarn winding device according to the invention while the device corresponds substantially to the parts of the embodiment of FG. la. The hollow body 1 is in the same manner rotatably Yjourna'lled in the lower housing wall Z. by means of the anti-friction bearing 3 and is also rotatably journalled in the upper housing wall 2" by means of the vanti-friction bearing '4. Furthermore, the hollow body l may, for instance, be driven by a belt. Also,

Ysleeve S, llange 6 of tubular body l, yspring 7, spring ring S, bushing 9' and the elastic annular body lll' are similarly designed as the corresponding parts in the embodiment of FIG. la. 'The diderences over said last-mentioned embodiment consist merely in that the insert opening in the Vlower housing wall 2 is closed by a cap it? so that with the illustrated embodiment, the yarn sleeves must be inserted into the tubular body from above. With the embodiment according to FlG. 6a the elastic annular body lll does not directly engage yarn sleeve 4l because the latter has its lower end provided with resilient rings 42, as is the case, for instance, with the known Northrop ln this instance, `between the elastic annular body 16 and the yarn sleeve 41 there is clamped in a holding sleeve d?, which is slit in the axial direction and has its lower edge provided with a folded-over edge 44 adapted to engage a depression l2 of the tubular body 1. The holding sleeve 43 furthermore comprises la number of annular grooves 45 which, as to number and design, correspond to the resilient rings l2 of yarn `sleeve 4l. In this way, yarn sleeve dl is inserted into holding sleeve d3, and, by means of the elastic ring lb, is clamped into sleeve d3 in such a way that simultaneously, there is also established the connection with the tubular body 1.

The embod'nnent according to FIG. 6b is designed for receiving a conical yarn sleeve 46 which is held on one hand by the elastic annular body lll in direct frictional connection, and on the other hand is held by the elastic supporting ring i4 at the lower end, the supporting ring ld engaging a depression l2 of the tubular body l.

The embodiment according to FlG. 6c is designed substantially in the same way las the embodiment of FIG. 6b, but it diilers therefrom in that, instead of a lower supportinty ring lthere is provided a permanent magnet 25, as it has been described in connection with the embodiment of FlG. 3a. This permanent magnet Z5 is positively held by means of two holding or supporting rings 13, 11.4 which engage depressions l2 of the tubular body 1. Yarn sleeve 47 rests upon the permanent magnet 25 and is pulled inwardly into the tubular body 1 by such permanent magnet 25. Furthermore, the yarn sleeve 47 is laterally embraced by the holding ring 13, as it has been described in connection with the embodiment of FIG. 3a. In addition thereto, a ring 48 of iron or magnetizable metal may be inserted into the lower end of yarn sleeve 47 so that the magnet may become effective. In this connection, it is assumed that the yarn sleeve 47 consists of non-magnetizable material as, for instance paper or the like. Of course, if desire-d, the entire yarn sleeve may consist of magnetizable material.

The embodiments according to FIGS. 6a to 6c have in common that the lower holding means for the yarn sleeve 41 or i6 or 47 may be displaced to different levels within the tubular body l, and that various types of holding means may be employed. Due to the fact that the holding of the yarn sleeves in tubular body l is effected by means of elastic annular bodies lil or supporting rings 1d or permanent magnets 25, the yarn sleeves Lil or 46 or i7 will not be subiected to a rigid clamping. They are, rather, able to move laterally to a certain extent, with the result that they will center automatically with regard to the `axis of rotation of the tubular body l in such a way that the axis of rotation will coincide with the axis of lgravity of the yarn sleeve including the wind-up yarn body.

FIGS. 7 to 7 c' illustrate further embodiments of the invention while employing a tubular body 161 in the form of a corrugated pipe. With the embodiment according to FIG. 7a, the tubular body lill is in the same manner as with the embodiment of FIG. lb, journalled in the lower housing .wall 2 and upper housing wall 2" by means of anti-friction bearings 3 and 4 respectively. Similarly, the sleeve 5, flange of tubular body lill, spring 7, spring ring 8, bushing 9 and elastic annular body 1t), are provided. However, with the embodiment according to FIG. 7a, the yarn sleeve 5l is connected to the tubular body 101 in a manner different from that of FIG. 1b. More specifically, a supporting sleeve 52 is placed into the tubular body itil and has about one-half of its length 'arranged within the tubular body itil, while the remaining length protrudes beyond the upper end of the tubular body 101. However, this supporting sleeve 52 has a greater length which extends beyond the total length of the tubular body lill and protrudes beyond the tubular body itil by about the same length. The lower end of the supporting sleeve 52 is provided with a reinforcement 53 *and has an annular groove engaged by the holding ring 54 which, on the other hand, engages a valley section of the tubular body IGI. The employment of a supporting sleeve is particularly advantageous when the yarn sleeve has to be selected with a very thin wall, for instance for saving weight and space. The lower end of yarn sleeve 51 has an annu-lar groove 55 formed by a corrugation. The yarn sleeve 5l is slipped over supporting sleeve 52 to such an extent that annular groove 55 of yarn sleeve 5l will be engaged by the elastic annular body 1G. ln this way, a frictional connection is established between the tubular body itl-l and the yarn sleeve 5l.

FIGS. 7b and 7c illustrate a yarn Winding device according to a further embodiment of the present invention, said two figures respectively illustrating two different positions oi the yarn sleeve. The tubular body lill is in this instance iournalled in the equatorial Zone of a ball in the form of a two-line anti-friction bearing 56, this bearing forming the only bearing portion for the tubular body lill. The balls of the anti-friction bearing 56 move directly into corrugations of the tubular body lill, as is clearly shown in the drawing. r[he outer ring is mounted in the web or leg 57 of a T-shaped portion of the spindle rail and is thus held therein. The upper end of the tubular body lill similar to the previous embodiment has a flange 6, a spring 7, a spring ring 8, a bushing 9 and an elastic annular body 1l) which parts operate in the same manner as described in connection with the previously discussed embodiments. Similar to the embodiment of FIG. 7a, the annular body lill of FIG. 7b has mounted therein a supporting sleeve 58 which latter, however, has a greater length which extends over the total length of the tubular body lill and protrudes therefrom by about the same length. The lower end oi the supporting sleeve 5S is provided with the same reinforcement 53 as supporting sleeve 42 of FIG. 7a, and is also provided with lan annular groove in which is mounted a holding ring 54 which latter is located in a corrugation of the tubular body lul. Placed upon the supporting sleeve 58 is, in this instance a two-sectional yarn sleeve the inner portion 59 of which has about the same length as the supporting sleeve 5S, whereas the outer portion di? has about halt said length. Both sleeve portions have their lower ends provided with an annular groove 55 formed by annular folds, which groove 55 serves for securing the location of the sleeve portions within the tubular body lul by friction. In the position of the yarn sleeve as shown in FIG. 7b, the inner portion 5 is completely slipped over the supporting sleeve 5S and res-ts upon the reinforcement 53 of the supporting sleeve 5S in the axial direction. To secure the position in the radial direction, there is provided a holding ring 54 which, on one hand engages the 'annular groove 55 on the inner portion 59 or" the yarn sleeve, and on the other hand engages a valley section of the tubular body lill. The outer portion 6@ of the yarn sleeve which is placed upon the inner portion 59 occupies such a position that the annular groove 55 of the outer portion oil is tilled by the elastic annular body l@ so that in this way also the outer portion 6) of the yarn sleeve is by friction connected to the tubular body 1.61. Furthermore, below the elastic annular body lil a further holding ring 54 is inserted into a valley section of the tubular body lill. rIhe holding ring 54 will, in the position of the yarn sleeve according to FIG. 7 b, not engage the inner portion 59.

The winding operation starts on the outer portion El) of the yarn sleeve and is continued until the winding tip has almost reached the upper portion or" the outer part 60 of the yarn sleeve. As soon as this is the case, the yarn sleeve is brought into the position of FIG. 7c. In this position, the outer part 6u will retain the position it occupied up to that time, whereas the inner portion 5% of the yarn sleeve engages the holding ring 54s". ln this way, the yarn sleeve is extended upwardly and the winding operation may pass from the outer portion 60 of the yarn sleeve to the inner portion 59 of the yarn sleeve and may be continued on said inner portion 59 until the winding tips have reached the upper end of the inner portion 59 of the yarn sleeve.

FIGS. 7b and 7c also show two different possibilities for driving the tubular body Ital. According to FIG. 7b, at uniform spacing from the anti-friction bearing 56 there is provided one driving cord 6l each in a valley section of the tubular body itil. In contrast thereto, according to FIG. 7c, instead of one driving cord there are always two driving cords 6l arranged above and below the antifriction bearing 56.

The possibilities set forth in connection with the embodiments of FIGS. 6a to 6e may also be employed irl connection with tubular bodies lul, as illustrated in FIGS. 7a to 7c. Similarly, the particulars according to FIGS. 7a to 7c may be employed in connection with smooth tubular bodies l. according to FIGS. 5 and 6a to 6c.

The embodiments of yarn winding devices illustrating the tubular bodies are driven, for instance by means of a belt or a cord. `It is a matter oi course that there also exists the possibility of rotating the tubular body by other driving means, for instance by means of a screw wheelworm transmission or by a drive of its own. In this connection, it is possible to design the hollow body as hollow drive shaft of an electric motor.

When employing a tubular body, there also exists the possibility or employing yarn sleeves of different shapes l l Y Y and dimensions in the form of spindleless yarn carriers. Furthermore, the advantage is obtained that the yarn sleeves may be ypressed upwardly from below. ln each instance, due to the elimination or a spindle, the rwithdnawal of a completed cop is considerably facilitated because it will be possible to 4withdraw the cop by a mere slight tilting operation and only a slight axial upward movement.

is, or" course, to be understood that the present invention is, by no means, limited to the particular constructions illustrated in the drawings, but also comprises any modications within the scope of the appended claims.

What l claim is:

l. In a yarn winding device, especially for spinning and twisting machines, supporting means, a substantially vertical tubular member rotatably journalled in said supporting means and adapted to receive therein at least a portion of a yarn sleeve for receiving a cop, lirst annular holding means arranged at the upper end portion of lsaid tubular member and adju-stable radially for selectively reducing its inner diameter to therebyfrictionally engage and hold a yarn sleeve inserted through said Liolding means into said tubular member, second annular holding means supported by said tubular member n1 axially spaced relationship to said first holding means for likewise frictionally engaging and holding said yarn sleeve when inserted into said tubular member, and manually adjustable means arranged adjacent said irst holding means for selectively adjusting the same.

2. In a yarn winding device, especially for spinning and twisting machines, supporting means, `a substantially vertical tubular member rotatably journalled in said supporting tmeans and kada1 ed fto receive tnerein at least a porlion of a yarn sleeve for supporting ya cop, first annular yieldable holding means supported by the upper end portion of said tubular member and adapted to allow the of at least a portion of said yarn sleeve therethrough when inserting said yarn sleeve into said tubular mem-her, bushing means extending around said upper end portion of said tubular member and provided with ange ymeans operable to engage said bold-ing means and exert axial and radial pressure thereupon for selectively reducing the inner diameter of said first hol-ding means to thereby exert a clamping and holding action on the yarn sleeve inserted into said tubular member, `and lat least second annular holding means supported by said tubular member and arranged in axially spaced relationship to said rst hol-ding means lor yfrictionally engaging and holding a yarn sleeve inserted into said tubular member.

3. In `a yarn winding device, especially for spinning and twisting machines, supporting means, a substantially vertical tubular member rotatably journalled in said supporting means and `adapted to receive .therein at least |a portion of a yarn `sleeve lfor supporting a cop, first annular yieldable holding means supported by the upper end portion or" said ltubular member yand adapted to allow the passage of at least a pontion of said yarn sleeve therethrough when inserting said yarn sleeve hito said tubular member, bushing means extending around said upper end portion of said 4'tubular member and provided with flange means operable toV engage said holding means and exert axial and radial pressure thereupon yfor reducing the inner diameter of said lirst holding means to thereby exert a clamping and holding `aeftion on the yarn sleeve inserted into said tubular member, abutment means supported by said bus. means in axially spaced relationship to said liange means, spring means interposed between said abutment means and the flipper end :of said tubular member and continuously urging said ange means to exert radial and arial pressure on said iirst holding means, `and second holding supported by said tubular member in axially s-paced relationship to said irst holding means and operable yto axial-ly and yrictionally engage hold 'the yarn sleeve inserted into said tubular member.

4. In a yarn whidine device, especially for spinning Cil and twisting machines, supporting means, a substantially ventical tubular member rotatably juornalle'd in said supporting means `and adapted to receive therein at least a portion of a yarn sleeve for supporting a cop, lrst annular yie-ldable holding means supported by the upper end portion of lsaid tubular member `and adapted to allow the passage of at leas-t a pontion of said yarn sleeve therethrough when insenting said yarn sleeve into said tubular member, said first `annular yieldable holding means cornprisin-g annular segments with a conical peripheral surface and yieidable spring means respectively interposed between said `segun-nits for continuously urging the same yawe-.y from each other, a bushing having a flanged portion with an yinner conical surface corresponding to the peripheral surface of said segments `and also comprising a skirt portion connected to said flanged portion and surrounding tbe upper end pontion of said tubular member in radially spaced relationship thereto, radially inwardly extending abutrnent means connected rto said skirt portion in axially spaced relationship to said flanged portion, spring means interposed between said flanged portion and said abutment means and continuously 4urging said flanged portion to lmove in :axial direction toward the adjacent end of said tubular member to thereby move said segments radially inwardly and exert a clamping and holding pressure on a yarn sleeve inserted into said tubular member through said first holding means, and second 'holding means supported by said tubular member in spaced relationship to said lirst holding means for likewise frictionally engaging Aand holding the yarn sleeve inserted into said tubular member. l

5 ln -a yarn winding device, especially for spinning and twisting machines, supporting means, -a tubular member rotatably journalled in said supporting means and adapted to receive therein at least la portion of ya yarn sleeve, said tubular member having a corrugated inner surface, and annular holding means arranged within the grooves formed by the .cornugation of said tubular member and adapted to receive and lfrictionally connect to said tubu- =lar member `a yarn sleeve 'at least partially inserted into said tubular member.

6. VIn a yarn .winding device, especially for spinning and lwisting machines, supporting means, a substantially vertical tubular member rotatably journalled in said suppont-ing means and adapted `to receive therein at least a portion of a yarn sleeve, first `annular holding means arranged at the upper end of said tubular member and adapted to receive and frictionally to connect to said tubular member a yarn sleeve at least pantially inserted into said tubular member, permanent magnetic supporting means spaced tfrom said first holding means in axial direction of said tubrular member and provided with means for engaging the lower end ofthe yarn sleeve to be inserted in said tubular member to thereby axially locate sia-id yarn sleeve, land second holding means supported by said tubular member and supporting said magnetic supporting means.

7. A yarn winding device according to claim 6, in which the magnetic supporting means forms a supporting sleeve for engaging a y-arn sleeve tto be introduced in said tubular member from below.

8. ln a yarn winding device, especially vfor yspinning and twisting machines, supporting means, a snbstmtially vertical tubular member rotatably journalled in said supporting means and adapted to receive therein at least a portion of a yarn sleeve, said tubular member being open at both ends so as to allow the insertion of a yarn sleeve from the lower end of said tubular member, land annular holding means :supported by said tubular member for frictionally engaging and holding a yarn sleeve introduced into 'said tubular member.

9. ln a yarn winding device, especially for spinning and twisting machines, supporting means, a substantially vertical tubular member rotatably journalled in said supporting means and adapted to receive therein 'at least a portion of a yarn sleeve for supporting `a cop, a resilient slit bush-ing arranged at the lower end of said tubular member and yieldable in radial `direction to allow the introduction of a yarn sleeve therethrough from the lov-.fer end of said tubular member into the latter, said bushing being provided With means axially engaging from below a yarn sleeve introduced through said bushing into said tubular member, iirst holding means supported by said tubular member adjacent said slit bushing for holding the same, and second holding means spaced from said first holding means in axial direction of said tubular member for frictionally connecting an linserted yarn sleeve to said tubular member.

10. A set of cop-receiving yarn sleeves adapted to partially telescopically engage each other for use in connection with an arrangement Iaccording to claim 9, whereby successive yarn sleeves introduced through the bushing will be adapted to move the respective preceding yarn sleeve through -said tubular member and partially out of the same.

1l. A set of yarn sleeves according to claim 10in which successive yarn sleeves have an inner taper tapering by the Wall thickness of the respective preceding sleeve.

12. A yarn sleeve for use in connection with a yarn Winding device according to claim 9, in which each yarn sleeve has an inner and outer cone of such taper that each sleeve can be partially introduced from below into another sleeve.

13. In la yarn Winding system, especially for spinning and twisting machines, supporting means, a substantially vertical tubular member rotatably journalled in said supporting means, a substantially vertical support extending from the inside of said tubular member in axial mrection beyond the upper end thereof, rst holding means associated with said vertical support for holding the same in a desired stationary position relative to said tubular member, -a plurality of telescopically intere-ngaged yarn sleeves displaceably surrounding said vert-ical support, and second holding means respectively associated with the lower ends of said yarn sleeves for holding the same in desired positions with regard to said vertical support.

14. ln a yarn winding device, especially for spinning and twisting machines, supporting means, a tubular member open at lboth ends `and having cylindrical outer surface means rotatably journalled in said supporting means for permitting rotation of said tubular member, a yarn sleeve having a maximum outer diameter less than the smallest inner diameter of .said tubular member to thereby permit passing said yarn sleeve from the outside of said tubular member through said tubular member from one end to and through the other end thereof, holding means carried by said tubular member and rotatably connecting said yarn sleeve to said tubular member, and driving means engaging the outside ot said tubular member for rotating the same and thereby said yarn sleeve.

15. In a yarn winding device, especially for spinning and twisting machines, supporting means, a tubular member open at both ends and having cylindrical outer surface means rotatably journalled in said supporting means for permitting rotation of said tubular member, a yarn sleeve hav-ing a maximum outer diameter less than the smallest inner diameter of said tubular member to thereby permit passing said yarn sleeve from the outside of said tubular member through said tubular member from lone end to and through the other end thereof, holding means carried by said tubular member and Variable in position along at least a portion of the length of said tubular member to thereby selectively vary the location or" support for said tubular member and thereby also to vary the position of the ends of said yarn sleeve relative to said tubular member, said holding means rotatably connecting said tubular mem-ber to said yarn sleeve, and driving means engaging the outside of said tubular member tor rotating the same and thereby said yarn sleeve.

16. A yarn `winding device according to claim 14, in which said holding means frictionally engages and holds said yarn sleeve so as to normally prevent axial displacement of said yarn sleeve, said holding means being adapted in response to a certain pulling pressure in axial direction of said tubular member to permit axial movement or said yarn sleeve relative to said tubular member for adjustment of said yarn sleeve and its removal from said tubular member.

17. A yarn Winding device according to claim `14, in which said holding means are radially yieldable and elastic.

18. A yarn Winding device according to claim 14, in which said holding means are formed by yieldable elastic rings.

19. A yarn winding device according to claim 14, in which said holding means are formed by elastic annular members variable as to radial pressure excitable thereby.

20. in a yarn Winding device, especially tior spinning and twisting machines, supporting means, a tubular member open at both ends and having cylindrical outer surface means rotatably journalled in said supporting means for permitting rotation of said tubular member, yarn sleeve means having a maximum outer diameter less than the smallest inner diameter of said tubular member to thereby permit passing said yarn sleeve means from the outside of said tubular member through tbe latter from one end to and thro-ugh the other end thereof, iirst annular holding means arranged at one end of said tubular member for frictionally engaging and holding adjacent portions of said yarn sleeve means, atleast a further annular holding means arranged Within said tubular member and likewise frictionally engaging and holding said yarn sleeve means, and driving means engaging the outside of said tubular member for rotating the same and thereby said yann sleeve means..

References @ited in the file of this patent UNITED STATES PATENTS 2,304,712 Siegenthaler Dec. 8, 1942 FORElGN PATENTS 506,135 Great Britain May 23, 1939 

1. IN A YARN WINDING DEVICE, ESPECIALLY FOR SPINNING AND TWISTING MACHINES, SUPPORTING MEANS, A SUBSTANTIALLY VERTICAL TUBULAR MEMBER ROTATABLY JOURNALLED IN SAID SUPPORTING MEANS AND ADAPTED TO RECEIVE THEREIN AT LEAST A PORTION OF A YARN SLEEVE FOR RECEIVING A COP, FIRST ANNULAR HOLDING MEANS ARRANGED AT THE UPPER END PORTION OF SAID TUBULAR MEMBER AND ADJUSTABLE RADIALLY FOR SELECTIVELY REDUCING ITS INNER DIAMETER TO THEREBY FRICTIONALLY ENGAGE AND HOLD A YARN SLEEVE INSERTED THROUGH SAID HOLDING MEANS INTO SAID TUBULAR MEMBER, SECOND ANNULAR HOLDING MEANS SUPPORTED BY SAID TUBULAR MEMBER IN AXIALLY SPACED RELATIONSHIP TO SAID FIRST HOLDING MEANS FOR LIKEWISE FRICTIONALLY ENGAGING AND HOLDING SAID YARN SLEEVE WHEN INSERTED INTO SAID TUBULAR MEMBER, AND MANUALLY ADJUSTABLE MEANS ARRANGED ADJACENT SAID FIRST HOLDING MEANS FOR SELECTIVELY ADJUSTING THE SAME. 